Thread: Naniwa SS 10k vs. 12k

So, I want to share with other members what I hear about using Naniwa SS 10k vs. 12k from one well knowed seller and I want to hear your oppinions also.
I can not share my oppinion because I used just 10k.
So, almost year ago when I decide to buy set of Naniwa stones that seller told me that is enough to buy stones up to 10k. I asked him why not to buy and 12k also and he said that 12k leaves bigger scratches than 10k.
So, what you think, especially honers who use 12k Naniwa SS????????